It's funny how our mind plays tricks on us, isn't it? I know that I see faces in so many things that my husband has started seeing them too! haha.

I think the dark color of the stone and the shape causes it to stand out. I think it would have caught my eye as well. I will be interested in seeing what type of story you come up with. Will it be a magical rock where things are transported there from other dimensions? Are there items sitting in front of the rock causing someone to think they have lost their minds when it is nothing more than a transportation stone?

Good luck!
Ren